"Work Bitch" (edited for radio as "Work Work") is a song by American singer Britney Spears released as the lead single for her eighth studio album, Britney Jean (2013). It was written by Spears, will.
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001a90e23ee0b314ce8b3f497513990e163f926196b7cb6ce198373237455caf. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/761a66db-4f4e-48f1-8717-7f1871b625e0.json and https://artists.proofprofile.net/proofs/artist/761a66db-4f4e-48f1-8717-7f1871b625e0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Work Bitch (Britney Spears Twerk Tribute)